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Archived threads in /diy/ - Do It yourself - 207. page
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File: Shinra_Logo.jpg (195 KB, 1024x1024) Image search: [iqdb] [SauceNao] [Google]
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I stopped using gas years ago to switch to electricity only. The gas company closed and capped the meter for me as well.

Fast forward to 2016 some dude from the gas company says since we havent used it for like 10 years they need to excavate and cap the main pipeline underground for "safety resasons". I found this ridiculous. What if I want gas again in the future or sell the house to someone who does?

Is this a scam? Do they have legal right to do this? Wouldnt this bring my property value down?
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I ask on DIY hoping someone with construction knowledge (and maybe some legal knowledge) would help.
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>>927886
Totally helps. Because we're all mind readers and master stalkers.

So for an answer...

Yes.
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>>927900
You need to slow down and read, son.

Can anyone help me fix my amp? I can send you $5 through PayPal if you figure it out, it's a Pioneer A10k. There's a horrible hum in the left channel only on the phono input, all of the other inputs are fine and it's there when nothing is plugged in so it's definitely a preamp problem. Could get a dedicated pre but seems kind of sily, can use a soldering iron.

TL;DR: Loud hum in left phono wat do
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>>>/g/
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>>929069
/g/ told me to come here.
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>>929068
If it's a (higher pitch hum) 120 - 130 hum than it's a filter capacitor you can swap it out I assume it is this since it's only present in one channel.
If it's a 50-60 hz hum this is a more serious issue and might need some debugging.
It could be your channel wire runs parallel to a power cord. It could be a leaking capacitor in the power section, a worn out resistor in the transistor bias...
Spend the 5 bucks on an decent electronics book and upload a torrent.

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How do I fix this poor little model plane (pic related)? The propeller and the spinner aren't perpendicular to the plane's body.
I have all the basic /diy/ tools by the way.
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>>928963

It may not need to be perpendicular to the longitudinal center line. Most planes have built in down and left thrust. This is to offset torque and the center of drag being higher than the thrust line respectively. Most high wing planes have down thrust. So don't assume it needs to be be fixed. Is that a factory install or did you install the motor?
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It's not supposed to be. The motors make too much torque for the size of the plane. If there aren't canted properly it becomes uncontrollable or you need to use all your control authority just to maintain level flight.
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>>928966
I assembled the airplane.
The problem is that because of being so inclined, the propeller touches the plane's body, and gets stuck, unable to rotate.

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Hey guys. I have run into a bump in my attempt to make a pendant. I am basically just trying to solder together the silver wires shown in this pic using a oxy/propane jewelers torch. It is a very delicate process and I am not able to use the torch next to the gemstone (labradorite). My plan was to use clay/paste that I could mold into the shape of the gemstone, set up the wires on the clay/paste replica where they need to be, and then solder the joints using silver solder. I bought some high temp firing clay and tested my torch on it. The clay started shooting dried up chips...
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>>928905

Jeweler here.

When you're working with stones like that you make the retention ring and back for the stone, remove the stone, then fuse the rest of the piece together with the mounting.

Pic of the back? ideally you'd remove the stone, finish the piece and then reattach the stone
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>>928931
hello. I currently don't have the back made yet but i do have how I want the design drawn out on paper. I am planning to intertwine the back and front pieces once I have the pieces soldered. I am unfamiliar with "retention rings". I am still new at this.
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>>928936
Unless you're a post-menopausal woman that needed a hobby and chose wire-wrapping then you need to mount the stone properly

Search for "silver cabochon" on google for some instruction and making it.

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I didn't see a stupid question thread, but I have a stupid question. I need to get the battery cover off of this maglite (the part circled in red). Only problem is, it's stuck on there good. I've tried spraying it with the bottles in the pic, but they aren't showing any results. Are there any other methods I could try?
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>>928904
Put rubber or something on it and use pliers
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>>928904
To pairs of Channellocks and some rubber or tick cloth as suggested.

If its caused by a swollen/ruptured battery you might want to forget it. Because Mags aren't completely open at the other end its almost impossible to get bad batteries out of them without using a heat gun. Using a heat gun is risky. Considering I see them for sale at thrift stores and yard sales for under $10 all the time it might not be worth your effort. Yeah, they are great flashlights and an old Mag is just as good as a new one. Hence,...
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>>928907
>>928919
Thanks for the advice. Tried it with some pliers over cloth and got it off. Looks pretty good on the inside as well, no real corrosion.

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How calibrate a VCR?

I have a Daewoo model SD-7500, and already try cleaning the head, but I still having problems with a video tape: in this tape the image jumps, I try clicking with the keywords "+" and "-" in my remote control to better the image, but don't works.

The vide tape seems clean without that withe thing:
http://www.convertit.co.nz/assets/Uploads/resizedimage600400-Mouldy-Tape1-horz-v1.jpg

Help.
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>>928396
Have you tried with a second tape? And do you have an osilliscope? Cuz you'll need one if you want to run an align.
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tapes that were recorded wrong can't be played back right
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>>928509
Nope, this tape was record in SP. In my last VCR I had, I never have this problem with this video tape in particular.

>>928404
This only happen with this tape in particular

>osilliscope

Nope, I don't have that.

Also:
I found this screws and I discover if I move more or less, the image change and too the audio, but I can't find the combination right to this video tape.

So I decided to build a oven for various projects, heat is always needed!
The plan is to scavenge the heating elements from a sauna heater which are abundant here in the land of glory and heroes . The oven itself is easily created out of fire bricks.
But is there some thingamajig that could regulate three phase heaters? I presume these heaters work with phase to phase voltages that translate to 380V. I can follow the heat inside the oven with some probe so no automation is needed, just a knob to turn which regulates the heat inside. The amount of power needed to be regulated...
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>>928031
I'm building one too, but mine uses normal wall outlet electric. Just 124v 15A 1850W maxes for the outlets it would use. It will be heavily insulated so that only a small amount of power will be needed to build up a lot of heat.

Since you are using fire bricks, what will this oven be used for? Normally you only use fire bricks for some heavy duty, high temp use like a foundry & furnace or kiln. Otherwise, the bricks will take forever to heat up for lower temperatures.

Mine is just for food cooking...
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>>928031
I honestly got my cooker for free. I have no idea why you feel the need to build an oven.
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>>928159
My friend is a blacksmith (that earns his living with smithing) and we were talking about steel one day driving around. I unfortunately don't know the vocabulary in English but certain shit you do to steel needs specific temperatures. You know what I'm talking about. I want those temperatures and it won't be too hard to build the oven part. But to control the temperature one needs a way to regulate it. And this is something that is new for me. Three phase regulation.

And with the option to turn...
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I rented an old house this summer (the house is about 50 years old). It's my first house and I'm really happy with my choice. However, the bathroom stinks really bad... Any suggestions? I've already tried buying one of those bathroom air fresheners, but it seems now the bathroom smells like shit and perfume.
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>>927993
bleach spray everywhere
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Call landlord. If you've been using the sink and shower already, then the only thing left to stink is the toilet's wax/rubber ring.

Does it smell like sewage/shit or just musty/mold? It could be leaking water in a wall I guess.
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>>927999
Sewage shit I'm afraid. And I'm pretty sure it's coming from the toilet.

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Hey diynos! I know some will say this is an /o/ question, but I just can't deal with those retards. I just got an inheritance from an aunt. It's enough to take a year off and just drive. I want an RV, but not the flimsy crap that they try to foist off as basically a rolling hotel room. I want something I can take way north on the north american continent without worrying as much about snow, rough roads and crap like that. Would I be better off buying a pic-related, or buying a surplus military vehicle and converting it myself? Basically decent off-roading to get somewhere,...
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>>927683
If funds, time and skill permit, I would be going ex military custom job all day every day. Milspec will always be more beefcake than civvy (unless you're paying stupid amounts of money, in which case again, should be spent on a custom solution that does everything you need if you have that kind of dosh) and you won't feel so bad about punching holes through the thing to run your own gear as you would a brand new vehicle.

Whats your budget?
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I'm looking at about 120-150k. that would stlll leave me 200k to enjoy the year.
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>>927683
Don't go ex-military. That's way more Toughness than you need and its going to get godawful mileage, which will cost a money when gas goes back up in a couple years. Just buy a van and convert it, unless you are going to do serious off-roading.

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These things confuse me it can do 600V 30A which is quite a lot of power, but is it the same as MOSFET ratings where they can usually do higher current at lower voltages? Say 100V 100A?
http://www.semicon.sanken-ele.co.jp/ctrl/en/product/detail/SCM1246MF/

I need to find the best way to create a H bridge driver circuit for a device requiring high safety. The MCU part is easy just use high grade automotive parts, but when it comes to the H bridge and components I can't work out how to make an automotive/aerospace grade solution that fits 100V 100A.
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You would need to supply more info.

What are your switching speeds, budget and purpose.

If it is a H brigde, then the voltage is clamped to your supply, so if your supply is 100v go with 150v or 200v rated devices.

You are not going to get any of this space graded, the testing is insane, so are the price tag.

But you could either use complete modules as you suggest, or individual mosfets as a H bridge, look at half bridge drivers on farnell.com

If this makes no sense, then you might be on really deep water..
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Btw component rated for automotive, are usually not rated higher than 48-75 volts, as most parts are supplied by either 14.4v or 28.8v..
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>>927317
He's asking if you can trade current for amps on a H-bridge like you can a MOSFET. Lrn2comprehension.

Hello /diy/, I have an idea for a sliding polycarbonate window I want to make. Its a 4'x2' window that needs to slide along a track which makes about a 90 degree bend. The bend is along the 4' wide part of the window. How thin does the polycarbonate have to be to be flexible enough for this, how tight can the radius be, and will it even work?
If someone could point me to the appropriate spec sheet for polycarbonate that would be helpful, but I haven't been able to find anything relevant to what I need to know
6 replies and 1 images submitted. Click here to view.
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>>927299
anything thin enough to bend even at a large radius wouldn't make much of a window.
does it need to act like a window on the bend?
what about a round track and sectional window?
like a sectional garage door turned on its side?
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>>927351
THis guy has a good idea.

Like a wooden rolltop desk, but with segments of of plexi and tape.
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>>927351
I'd rather not have sections of it. The application is a rear window on a soft top jeep wrangler, to replace the vinyl + zipper design with something more rigid that will slide up underneath the roof. It doesn't have to be thick, but it cant be just a film of plastic either.

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Would it be feasible to do picture-in-picture in hardware? Digital video feeds, not super high-res, but needs to be updated preferably 120 times a second. Are there any single-chip solutions to this? I know text is pretty easy, but video sounds more than a bit trickier.
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>>927271
If you can wait til march, then one of these should do: https://www.crowdsupply.com/numato-lab/opsis

If you can't, then a bog-standard PC with capture cards would work, though latency would be a challenge. Or not, depending on your requirements.
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>>927271
you're looking for a thing called a multiviewer.
they're about a hundred fiddy bux for a basic unit that takes 2 1080p hdmi in and gives 1 hdmi out with pip and vertical split modes.

120hz frame rate is taking the piss though, there isn't even a standardised format for that.
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>>927286
there's no such thing as a format for framerates anyway, not in the traditional sense
It's just the same thing as the usual format, but faster

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So I wanna set up a workshop, but I dont have any space in my house. What kind of stuff (mainly woodworking, but anything really) can I make with only handheld tools? Things like Dremels, jig saws, skill saws, anything handheld like that.
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>>927214
How about a shed?
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>>927215
Shed's too small
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A nice miter saw (the hand powered kind), a scroll saw or small bandsaw (not hand held but can be small), a drill. Random orbital sander.

With those tools you can make square boxes, bandsaw boxes, and most basic projects, albeit with butt joints. (Tee hee)

Oh and CLAMPS

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pic related. ordered a chinese 3040T cnc router/mill and should get here today. it is coming with some pirated mach3 software which is supposed to be pretty decent. I prefer linux, and installed linuxcnc to mess around with it. i can see that there will be a learning curve either way to get it set up (cnc noob), but i wanted to ask here to see what sort of CAM software solutions are used, or preferred, why, etc.
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i use cambam. its free for 40 uses then you have to buy key. so i erase laptop reinstall windows and get 40 more uses, over aND OVER.
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>>926585
Couldn't you just install it in a sandbox? Seems so much easier.
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>>926585
>>926588
just never close it down

When dumpster diving is brought up it's look at with scorn by some people on here because they say it's just hoarding. Let's talk about what USEFUL components we commonly find in discarded/old electronics and where to find them. Actually, any type of found thing you use in whatever you do can go ITT as well. Let's try to talk about components that are actually being used not just glued onto something to look cool.
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Old CRT monitors are super useful to me right now because I had the crazy idea of combining light guns and video synthesizers.

I remember piles of them being everywhere less than a decade ago, but it was over a month of dumpster diving before one showed up. I'm now hording three of them now.
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Just a though, but why didn't you start a thread on "How to source electronic components for free" instead of dumpster diving.

This thread will devolve into people talking about that one great score they got 6 years ago, people saying they grab everything, people calling them hoarders, people saying they would shoot anyone who dived in their bins, and the other regular posts.
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>>922526
Also, put an ad on CL. People will give them to you for free so they don't have to pay to bring them to the dump.

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